CN103855700A - Discharging circuit - Google Patents
Discharging circuit Download PDFInfo
- Publication number
- CN103855700A CN103855700A CN201210500873.XA CN201210500873A CN103855700A CN 103855700 A CN103855700 A CN 103855700A CN 201210500873 A CN201210500873 A CN 201210500873A CN 103855700 A CN103855700 A CN 103855700A
- Authority
- CN
- China
- Prior art keywords
- pin
- voltage
- connector
- discharge circuit
- supply unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Disclosed is a discharging circuit which is used for discharging power-supply voltages of different types of a power-supply unit. The power-supply unit outputs a power-supply voltage of a first type. The charging circuit includes a connector. A first pin of the connector is used for receiving the power-supply voltage of the first type. The discharging circuit includes the connector. The first pin of the connector is used for receiving the voltage of the first type and a second pin of the connector is grounded. When the voltage of the first type needs to be discharged, the first pin is connected with the second pin. The discharging circuit is capable of preventing a disadvantage that some power supply voltage discharging is slow so that when other devices are connected, a mainboard is damaged.
Description
Technical field
The present invention relates to a kind of discharge circuit.
Background technology
Factory is after mainboard has been tested, and tester generally can extract testing equipment immediately with next mainboard of setup test, thereby has saved the testing time, improves the production efficiency of producing line.But, because the discharge time of the various voltages of power supply is inconsistent, as often slower in the discharge time of the 5V_SB voltage of power supply, therefore, the situation that probably also exists electricity also not give out light after tester extracts testing equipment, if now plug relevant device immediately, can cause the situation that mainboard damages to occur, and then bring no small loss.
Summary of the invention
In view of above content, be necessary to provide a kind of discharge circuit that can repid discharge.
A kind of discharge circuit, discharge for the voltage that a power supply unit is exported, wherein this power supply unit is exported the voltage of a first kind, this discharge circuit comprises a connector, the first pin of this connector is for receiving the voltage of this first kind, the second pin ground connection of this connector, in the time need to discharging to the voltage of the first kind, is connected this first pin with this second pin.
Above-mentioned discharge circuit passes through to connect the connection between the pin that this connector is corresponding, thereby voltage unnecessary in this power supply unit is discharged, and then has avoided the slow damage that causes mainboard in the time connecting other equipment of supply voltage electric discharge because having.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the preferred embodiments of discharge circuit of the present invention.
Main element symbol description
| |
13 |
| Power supply |
20 |
| Resistance | R1、R2 |
| Jump |
30 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, discharge circuit of the present invention carries out discharge operation for the voltage that a power supply unit 20 is exported, and the preferred embodiments of this discharge circuit comprises a connector 13 and a resistance R 1.
The dissimilar voltages such as the exportable 12V of this power supply unit 20,5V_SB.In present embodiment, the discharge time of the 5V_SB voltage of exporting because of this power supply unit 20 is slower, and this discharge circuit is only for carrying out discharge operation to 5V_SB voltage.
This connector 13 comprises the first to the 12 pin 1-12, the 5V_SB voltage that the 11 pin 11 of this connector 13 is exported for connecting this power supply unit 20, and the 12 pin 12 of this connector 13 is by this resistance R 1 ground connection.In other embodiments, this connector 13 can only include the 11 pin the 11 and the 12 pin 12.According to the difference of voltage type, corresponding pin can be set, as in the time need to carrying out discharge operation to the 12V voltage of this power supply unit 20, the 12V voltage that the 9th pin 9 of this connector 13 is exported for receiving this power supply unit 20, the tenth pin 10 can pass through resistance R 2 ground connection.For further cost-saving, can use the front-panel connector on main frame to be used as this connector 13.
In the time that the voltage that need export this power supply unit 20 carries out discharge operation, when 5V_SB is carried out to discharge operation, connect the 11 pin the 11 and the 12 pin 12 of this connector 13 by jumping cap 30, also or by jumping cap 30 connect the 11 pin 11 and the tenth pin 10.So make voltage that this power supply unit 20 also do not give out light by corresponding resistance R 1 or R2 ground connection, reach the object of electric discharge.
Above-mentioned discharge circuit passes through to connect the pin of these connector 13 correspondences, thereby unnecessary voltage in this power supply unit 20 is discharged, and then has avoided the slow damage that causes mainboard in the time connecting other equipment of supply voltage electric discharge because having.
Claims (7)
1. a discharge circuit, discharge for the voltage that a power supply unit is exported, wherein this power supply unit is exported the voltage of a first kind, it is characterized in that: this discharge circuit comprises a connector, the first pin of this connector is for receiving the voltage of this first kind, the second pin ground connection of this connector, in the time need to discharging to the voltage of the first kind, is electrically connected this first pin with this second pin.
2. discharge circuit as claimed in claim 1, is characterized in that: this second pin is by one first grounding through resistance.
3. discharge circuit as claimed in claim 1 or 2, it is characterized in that: this power supply unit is also exported the voltage of a Second Type, the 3rd pin of this connector is for receiving the voltage of this Second Type, the 4th pin ground connection of this connector, in the time need to discharging to the voltage of Second Type, the 3rd pin is electrically connected with the 4th pin.
4. discharge circuit as claimed in claim 3, is characterized in that: the 4th pin is by one second grounding through resistance.
5. discharge circuit as claimed in claim 4, it is characterized in that: this discharge circuit also comprises a jumping cap, connect the 3rd pin and the 4th pin or be connected the 3rd pin and the second pin discharges to the voltage of this Second Type by this jumping cap by this jumping cap.
6. discharge circuit as claimed in claim 5, is characterized in that: connect this first pin and the second pin discharges to this first kind voltage by this jumping cap.
7. discharge circuit as claimed in claim 1, is characterized in that: this connector is the front-panel connector of a main frame.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500873.XA CN103855700A (en) | 2012-11-30 | 2012-11-30 | Discharging circuit |
| TW101145553A TW201424179A (en) | 2012-11-30 | 2012-12-05 | Discharging circuit |
| US14/071,608 US20140152113A1 (en) | 2012-11-30 | 2013-11-04 | Discharge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500873.XA CN103855700A (en) | 2012-11-30 | 2012-11-30 | Discharging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103855700A true CN103855700A (en) | 2014-06-11 |
Family
ID=50824744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210500873.XA Pending CN103855700A (en) | 2012-11-30 | 2012-11-30 | Discharging circuit |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20140152113A1 (en) |
| CN (1) | CN103855700A (en) |
| TW (1) | TW201424179A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080062597A1 (en) * | 2006-09-11 | 2008-03-13 | Shih-Hung Chen | Circuit for electrostatic discharge (ESD) protection |
| TW200929769A (en) * | 2007-12-27 | 2009-07-01 | Gemtek Technology Co Ltd | Discharging circuit for customer premises equipment and method for the same |
| JP2009194708A (en) * | 2008-02-15 | 2009-08-27 | Fujitsu Ltd | Protection circuit |
| CN101551969A (en) * | 2008-04-02 | 2009-10-07 | 晶门科技有限公司 | Method and apparatus for power recycling in a display system |
| CN101876846A (en) * | 2009-04-29 | 2010-11-03 | 鸿富锦精密工业（深圳）有限公司 | Computer power supply and standby voltage discharge circuit thereon |
-
2012
- 2012-11-30 CN CN201210500873.XA patent/CN103855700A/en active Pending
- 2012-12-05 TW TW101145553A patent/TW201424179A/en unknown
-
2013
- 2013-11-04 US US14/071,608 patent/US20140152113A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080062597A1 (en) * | 2006-09-11 | 2008-03-13 | Shih-Hung Chen | Circuit for electrostatic discharge (ESD) protection |
| TW200929769A (en) * | 2007-12-27 | 2009-07-01 | Gemtek Technology Co Ltd | Discharging circuit for customer premises equipment and method for the same |
| JP2009194708A (en) * | 2008-02-15 | 2009-08-27 | Fujitsu Ltd | Protection circuit |
| CN101551969A (en) * | 2008-04-02 | 2009-10-07 | 晶门科技有限公司 | Method and apparatus for power recycling in a display system |
| CN101876846A (en) * | 2009-04-29 | 2010-11-03 | 鸿富锦精密工业（深圳）有限公司 | Computer power supply and standby voltage discharge circuit thereon |
Non-Patent Citations (2)
| Title |
|---|
| 唐建东: "TET_LCD驱动芯片输入输出引脚静电放电保护电路设计", 《深圳职业技术学院学报》, no. 5, 31 October 2009 (2009-10-31) * |
| 常天海等: "移动终端的静电损伤及其防护技术", 《科学技术与工程》, vol. 10, no. 25, 30 September 2010 (2010-09-30) * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140152113A1 (en) | 2014-06-05 |
| TW201424179A (en) | 2014-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160706 Address after: 528437 Guangdong province Zhongshan Torch Development Zone, Cheung Hing Road 6 No. 222 north wing trade building room Applicant after: Yun Chuan intellectual property Services Co., Ltd of Zhongshan city Address before: 430205 Hubei city of Wuhan province Optics Valley East Lake New Technology Development Zone Road No. two Foxconn Technology Park Applicant before: Hongfujin Precision Industry (Wuhan) Co., Ltd. Applicant before: Hon Hai Precision Industry Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |